{"type": {"key": "/type/edition"}, "authors": [{"key": "/authors/OL29586A"}], "isbn_13": ["9781725800274"], "languages": [{"key": "/languages/eng"}], "number_of_pages": 54, "publish_date": "2018", "publishers": ["CreateSpace Independent Publishing Platform"], "source_records": ["bwb:9781725800274"], "title": "Mental Efficiency", "weight": "0.132", "full_title": "Mental Efficiency", "works": [{"key": "/works/OL109124W"}], "key": "/books/OL56737140M", "latest_revision": 3, "revision": 3, "created": {"type": "/type/datetime", "value": "2024-10-05T05:49:18.195477"}, "last_modified": {"type": "/type/datetime", "value": "2026-01-13T21:08:30.911081"}}